I bought a Joye 510 in 2010 and never really used it much. I'm now starting to use it, and it works great except I'm really unhappy with the atomizer and cartridge route. It is really messy for me unless I'm doing something wrong. There seem to be a lot of new developments since I've purchased. I'm interested in the tanks, or cartomizers, or is that the same thing? And what would be compatible with my 510 that people have used and liked? I'd appreciate any help.